derGoldstein writes with this quote from the official Google blog:
"Today we're adding games to Google+. ... We want to make playing games online just as fun, and just as meaningful, as playing in real life ... When you're ready to play, the Games page is waiting — click the games button at the top of your stream. You can see the latest game updates from your circles, browse the invites you've received and check out games that people you know have played recently. The Games page is also where your game accomplishments will appear. So you can comfortably share your latest high score — your circles will only see the updates when they're interested in playing games too."